Home / 148,663.69-205,152.97-84,131.73

Finding the Fourth Proportional to 148,663.69, 205,152.97 and 84,131.73

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Solution

The fourth proportional to 148,663.69, 205,152.97 and 84,131.73 is: 116,100.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,663.69 : 205,152.97 = 84,131.73 : x
  2. Step 2: Convert to fraction form
    148,663.69/205,152.97 = 84,131.73/x
  3. Step 3: Cross multiply
    148,663.69x = 205,152.97 × 84,131.73
  4. Step 4: Simplify right side
    148,663.69x = 17,259,874,280.74
  5. Step 5: Solve for x
    x = 17,259,874,280.74/148,663.69
  6. Step 6: Final answer
    x = 116,100.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.